hw/sd/npcm7xx_sdhci: Use TYPE_SYSBUS_SDHCI definition

Use the macro instead of two explicit string literals.

Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Cédric Le Goater <clg@redhat.com>
Message-Id: <20240702140842.54242-2-philmd@linaro.org>
diff --git a/hw/sd/npcm7xx_sdhci.c b/hw/sd/npcm7xx_sdhci.c
index e93dab8..fb51821 100644
--- a/hw/sd/npcm7xx_sdhci.c
+++ b/hw/sd/npcm7xx_sdhci.c
@@ -16,6 +16,7 @@
 
 #include "qemu/osdep.h"
 
+#include "hw/sd/sdhci.h"
 #include "hw/sd/npcm7xx_sdhci.h"
 #include "migration/vmstate.h"
 #include "sdhci-internal.h"
@@ -162,7 +163,7 @@
 {
     NPCM7xxSDHCIState *s = NPCM7XX_SDHCI(obj);
 
-    object_initialize_child(OBJECT(s), "generic-sdhci", &s->sdhci,
+    object_initialize_child(OBJECT(s), TYPE_SYSBUS_SDHCI, &s->sdhci,
                             TYPE_SYSBUS_SDHCI);
 }